LOW WATER CONTENT CATHODE MATERIAL, PREPARATION METHOD THEREOF, AND LITHIUM-ION BATTERY
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United States of America
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Apr 10, 2025
app pub date -
Sep 8, 2022
filing date -
Sep 8, 2022
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Abstract
A low water content cathode material, a preparation method thereof, and a lithium-ion battery are provided. The low water content cathode material includes: a cathode material core, and an outer film layer being coated outside the cathode material core, in which, the outer film layer includes at least one carbon-based layer formed by an oxygen-free carbon source. In the preparation method, by coating a cathode material precursor with an oxygen-free carbon source, a resulting cathode material itself has a water content of 600 ppm or below and has the function of a protective film, such that the cathode material has low water absorption when exposed to a humid environment, and can improve the safety performance of a lithium-ion battery.
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